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RichTextBox QControl


The RichTextBox QControl Code can be found here:

RichTextBox QControl.zip

The QControl Toolkit is required to use this and can be found here:

The QControl Toolkit on LabVIEW Tools Network

Overview


For this QControl I wanted a completely LabVIEW Rich Text Box.  Under the hood it uses an HTML-like tagged string to define the formatting.  Then there are two main methods: one that converts the tagged string to the formatted string and one that converts the formatted string to the tagged string.

This QControl contains two classes.  First, the RichTextBox Class inherits from the String Class and adds the ability read/write through a property nodes:

  • the tagged string 
  • whether to view the tagged string value or the formatted value in the String Control

Second, the RichTextBoxWithToolbar adds the Toolbar Facade and the Event Handler to handle all of the formatting events.  The font list is populated based on the OS and there is a case structure for that in the Initialize Control Method in this class.

See the included tester VI for implementation details.

Comments

  1. ShijinSeptember 13, 2020 at 12:27 AM

    This is awesome.......Can we add functionality to add Image into it

    ReplyDelete
    Replies
    1. QDecember 9, 2020 at 3:46 PM

      Unfortunately, no. The RichTextBox QControl extends the standard string control. So, it has no way it could handle images as it is written.

      You could, however, create a QControl from a picture control. Then program it to act like a sting which allows images. It would be difficult but not impossible to do.

      Other QControl resource can be found in the following links:

      https://www.qsi.dev/articles/
      https://labviewwiki.org/wiki/QControl
      https://forums.ni.com/t5/QControl-Enthusiasts/gh-p/5383?profile.language=en
      https://www.vipm.io/package/qsi_qcontrol_toolkit/

      Delete

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